jquery is cool

gistfile1.js

$(document).ready( function(){
  
  // Do the hidy boxes
  $('a.toggle-box').click( function(){
    var rel = $(this).attr( 'rel' ),
        section = $( 'section#' + rel ),
        target = section.find( '.box' );
    
    if( section.hasClass( 'hidden' ) )
    {
      target.slideDown();
      section.removeClass( 'hidden' );
    }
    else
    {
      target.slideUp();
      section.addClass( 'hidden' ); 
    }
  });
  
});